I-Chicken Egg Laying Decline Syndrome

I-Chicken egg-laying syndrome yisifo esithathelwanayo esibangelwa i-avian adenovirus futhi ibonakala ngokunciphaizinga lokukhiqiza amaqanda, okungabangela ukwehla okungazelelwe kwezinga lokukhiqizwa kwamaqanda, ukwanda kwamagobolondo athambile nakhubazekile, kanye nokukhanya kombala wamagobolondo amaqanda ansundu.

Izinkukhu, amadada, amahansi kanye nama-mallards angenwa yilesi sifo, futhi ukungenwa kwezinhlobo ezahlukene zezinkukhu ekubekeni amaqanda kuyehluka, nezikhukhukazi ezizalelayo ezinamagobolondo ansundu yizo ezithinteka kakhulu. Lesi sifo sihlasela kakhulu izinkukhu eziphakathi kwamasonto angu-26 no-32 ubudala, futhi akuvamile ukuba ngaphezu kwamasonto angu-35 ubudala. Izinkukhu ezincane azibonisi izimpawu ngemuva kokutheleleka, futhi akukho masosha omzimba atholakala ku-serum, okuba yi-positive ngemva kokuqala kokukhiqizwa kwamaqanda. Umthombo wokudluliselwa kwegciwane ikakhulukazi izinkukhu ezigulayo kanye nezinkukhu ezithwala amagciwane, amatshwele atheleleke zibheke phezulu, kanye nokuthinta indle kanye nokuphuma kwezinkukhu ezigulayo nakho kuzotheleleka. Izinkukhu ezinegciwane azinazo izimpawu zomtholampilo ezisobala, ezinamasonto angu-26 kuya kwangu-32 ubudala ezibekela izinkukhu izinga lokukhiqiza amaqanda ngokuzumayo lehla ngo-20% kuya ku-30%, noma ngisho no-50%, namaqanda anegobolondo elincanyana, amaqanda anamagobolondo athambile, amaqanda angenagobolondo, amaqanda amancane, igobolondo leqanda elingaphezulu elimahhadlahhadla noma iqanda lalingama-granular (i-sandpaper-like), iqanda elimhlophe elimhlophe njengokukhanya okuphuzi, iqanda elimhlophe elixutshwe namanzi angaphandle. Izinga lokuvundisa kanye nezinga lokuchanyuselwa kwamaqanda abekwe izinkukhu ezigulayo ngokuvamile alithinteki, futhi inani lamatshwele abuthaka lingakhula. Ukuhamba kwalesi sifo kungathatha amasonto amane kuya kwayi-10, emva kwalokho izinga lokukhiqiza amaqanda emhlambini lingabuyela kancane kancane. Ezinye zezinkukhu ezigulayo zingase zibonise izimpawu ezifana nokuswela umoya, umqhele omhlophe, izimpaphe ezihlakazekile, ukungakuthandi ukudla kanye nesifo sohudo.

Ukukhumbula ukwethulwa kwabafuyi abavela ezindaweni ezingenalo igciwane, imihlambi yokuzalanisa eyethulwe kufanele ibekwe yodwa futhi igcinwe yodwa, futhi ukuhlolwa kwe-hemagglutination inhibition (HI test) kufanele kusetshenziswe ngemva kokubekela amaqanda, futhi yilabo kuphela abangenalo i-HI abangagcinwa ukuze bazale. Amapulazi ezinkukhu namahholo okuchanyuselwa asebenzisa ngokuqinile izinqubo zokubulala amagciwane, qaphela ukugcina ibhalansi yama-amino acid namavithamini ekudleni. Ezinsukwini eziyi-110 kuya kweziyi-130 izinkukhu ezindala kufanele zigonywe ngomuthi wokugoma ongasebenzi we-oil adjuvant.